EXTRA_DIST = bin_join.h bin_str_join.h distinct.h dstream.h except.h \
             group_aggr.h istream.h operator.h output.h partn_win.h \
             project.h range_win.h rel_source.h row_win.h rstream.h \
             select.h sink.h stream_source.h sys_stream_gen.h union.h

